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I accidentally made a behavior change in the refactor. It turns out that when switching off `checked` to an uncontrolled component, we used to revert to the concept of "initialChecked" which used to be stored on state. When there's a diff to this computed prop and the value of props.checked is null, then we end up in a case where it sets `checked` to `initialChecked`: https://github.com/facebook/react/blob/5cbe6258bc436b1683080a6d978c27849f1d9a22/packages/react-dom-bindings/src/client/ReactDOMInput.js#L69 Since we never changed `initialChecked` and it's not relevant if non-null `checked` changes value, the only way this "change" could trigger was if we move from having `checked` to having null. This wasn't really consistent with how `value` works, where we instead leave the current value in place regardless. So this is a "bug fix" that changes `checked` to be consistent with `value` and just leave the current value in place. This case should already have a warning in it regardless since it's going from controlled to uncontrolled. Related to that, there was also another issue observed in https://github.com/facebook/react/pull/26596#discussion_r1162295872 and https://github.com/facebook/react/pull/26588 We need to atomically apply mutations on radio buttons. I fixed this by setting the name to empty before doing mutations to value/checked/type in updateInput, and then set the name to whatever it should be. Setting the name is what ends up atomically applying the changes. --------- Co-authored-by: Sophie Alpert <git@sophiebits.com>
react-dom
This package serves as the entry point to the DOM and server renderers for React. It is intended to be paired with the generic React package, which is shipped as react to npm.
Installation
npm install react react-dom
Usage
In the browser
import { createRoot } from 'react-dom/client';
function App() {
return <div>Hello World</div>;
}
const root = createRoot(document.getElementById('root'));
root.render(<App />);
On the server
import { renderToPipeableStream } from 'react-dom/server';
function App() {
return <div>Hello World</div>;
}
function handleRequest(res) {
// ... in your server handler ...
const stream = renderToPipeableStream(<App />, {
onShellReady() {
res.statusCode = 200;
res.setHeader('Content-type', 'text/html');
stream.pipe(res);
},
// ...
});
}
API
react-dom
See https://react.dev/reference/react-dom
react-dom/client
See https://react.dev/reference/react-dom/client